onActivityResult the use-value

Apr 4 posted in Mobile (RSS), comments.

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Sometimes the groups have added new people always like to ask some questions sometimes do not answer the past because of the frequency response more

Does not answer it against people who let their contact with the enthusiasm of the early strength in order to save or do simple things to it as a guide articles

More activity by value between the fact onActivityResult, then do not forget there is an action of the problem is in the main xml add your own action in order to facilitate identification, do not forget the last time activity finansh.

public class Wizard extends Activity {

    private TextView step1result, step2result, step3result;

    public static final String INTENT_STEP1 = "com.novoda.STEP1";
    public static final String INTENT_STEP2 = "com.novoda.STEP2";
    public static final String INTENT_STEP3 = "com.novoda.STEP3";

    private static final int STEP1 = 1;
    private static final int STEP2 = 2;
    private static final int STEP3 = 3;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.wizard);
        
        this.step1result = (TextView)findViewById(R.id.step1result);
        this.step2result = (TextView)findViewById(R.id.step2result);
        this.step3result = (TextView)findViewById(R.id.step3result);  
        
        startActivityForResult(new Intent(Wizard.INTENT_STEP1), STEP1);        
    }
    
    
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        switch (requestCode) {
            case STEP1:
                this.step1result.setText(data.getStringExtra("STEP1RESULT"));
                startActivityForResult(new Intent(Wizard.INTENT_STEP2), STEP2);    
                break;
            case STEP2:
                this.step2result.setText(data.getStringExtra("STEP2RESULT"));
                startActivityForResult(new Intent(Wizard.INTENT_STEP3), STEP3);    
                break;
            case STEP3:
                this.step3result.setText(data.getStringExtra("STEP3RESULT"));
                break;
        }
    }
}

public class Step1 extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.step1);

        Button nextStep = (Button)findViewById(R.id.goto2);
        nextStep.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                Intent it = new Intent();
                it.putExtra("STEP1RESULT", ((EditText)findViewById(R.id.step1value)).getText()
                        .toString());
                setResult(Activity.RESULT_OK, it);
                finish();
            }
        });
    }
}

The back are the same the step2 step3

Then there is the main xml

<application android:icon="@drawable/icon" android:label="@string/app_name">
                <activity android:name=".Wizard" android:label="@string/app_name">
                        <intent-filter>
                                <action android:name="android.intent.action.MAIN" />
                                <category android:name="android.intent.category.LAUNCHER" />
                        </intent-filter>
                </activity>

                <activity android:name=".Step1" android:label="Step1">
                        <intent-filter>
                                <action android:name="com.novoda.STEP1" />
                                <category android:name="android.intent.category.DEFAULT" />
                        </intent-filter>
                </activity>

                <activity android:name=".Step2" android:label="Step2">
                        <intent-filter>
                                <action android:name="com.novoda.STEP2" />
                                <category android:name="android.intent.category.DEFAULT" />
                        </intent-filter>
                </activity>

                <activity android:name=".Step3" android:label="Step3">
                        <intent-filter>
                                <action android:name="com.novoda.STEP3" />
                                <category android:name="android.intent.category.DEFAULT" />
                        </intent-filter>
                </activity>
        </application>
        <uses-sdk android:minSdkVersion="7" />
</manifest>